33- For gas phase rxn 2A-->B, feed consists 80 mole% A and 20 mole% inerts. if the conversion of A at the reactor exit is 50% then Ca/Ca0 at reactor outlet- 5/8

34- A pulse tracer is introduced in an ideal CSTR at time t=0,time taken for the exit conc. of the tracer to reach of of its initial value- 0.693*t

35- A batch adiabatic reactor with an initial temp. of 373K is used for the rxn A-->B. Assume heat of rxn is -1kJ/mol at 373K and heat capacity of both A and B is constant 50J/mol.K. The temp rise for the conversion of 0.5- 10*C

36- Moles of Air used for complete combustion of C3H8-

37- Molar composition of a gas is 10% H2, 10% O2, 30% CO2, and balance H2O. Now 50% H2O condenses then the final mole % of H2 in the gas on dry basis- 20%

38- A pitot tube indicates 5cm of water when it is used for measuring velocity of air. velocity of air in m/s is- 28.2

39- real gas approaches ideal behavior when- pressure<1 and Temp>1

40- Rxn between Gleceride and Aldehyde- Transesterification

41- An alkaline solution is used to reduce the conc. of CO2 in a stream from 10% to 0.1% by absorption with irreversible chemical rxn. The overall NTU based on gas phase is- 4.605

42- Multiple effect evaporator has capacity to process 4000kg of solid caustic soda per day when it is concentrating from 10% to 35% water. The water evaporated in kg/day is- 27,500

43- Heat is transfered through three layer of different thermal conductivity- 20.27 kW/hr.m2

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